Earlier quoted context omitted.
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From my comment: "Now, you could argue that global warming is bad / enough freeways cannot be built / etc., sure. Maybe we cannot have nice things. But don't argue that people want to live in urban paradise and some contrived system is simply not giving them what they want. " I just don't like the hypocrisy. However, it's the comments like this that make me think that for any equivalent level of far-, left is worse t…
One I've had tossed at me during a discussion is, "if you aren't a socialist when you're 20, you have no heart, but if your still a socialist when you're 50, you have no head." This isn't "holier than thou" per say, but it serves the same rhetorical role, it's smug nonsense from someone thinking that they just know so much better than you that time's steady march will make their argument for them (and so they don't have to address what you've said or treat you ).
Frankly, I also see people using the same tropes as in your comment mischaracterize substantive points as being whining or moralizing.
I would say the problem is that as a society, we don't understand how to conduct a productive discourse. I'm pretty sure we never have and have just been muddling through for millenia.
Believe me, I'd love it if being left wing meant the people I disagreed with online weren't frequently rude or vindictive, but I'm afraid I share your experience.